---
id: "papers-acdc-static-age-predicate-proof-smt"
type: "paper"
type_label: "Papers and paper collections"
title: "ACDC with Static Age Predicate Proof SMT"
maintainer: "Samuel M. Smith (attributed by the repository; the document names no author)"
authors:
  - "Samuel M. Smith (attributed by the repository"
  - "the document names no author)"
date: "2025-11-07"
year: 2025
reading_level: "implementer"
reading_level_label: "Implementer"
reading_level_meaning: "developers working in or against the code"
evidence: "informative"
evidence_meaning: "an author's paper, deck, tutorial or post explaining the suite"
status: "quiet"
status_meaning: "no change in six to eighteen months; still correct"
access: "public"
access_meaning: "anyone with the link"
topics:
  - "theory"
  - "cryptography"
roles:
  - "developer"
  - "security-architect"
  - "researcher"
source_url: "https://github.com/SmithSamuelM/Papers/blob/master/whitepapers/ACDC_AgePredicate_SMT.md"
source_license: null
source_license_note: null
found_on: "smith-papers"
kerisse_credit: false
abstract_license: "CC BY 4.0"
abstract_license_url: "https://creativecommons.org/licenses/by/4.0/"
abstract_attribution: "KSKB, the KERISuite Knowledge Base (https://kskb.dev/)"
last_checked: "2026-10-15"
kskb_url: "https://kskb.dev/cards/papers-acdc-static-age-predicate-proof-smt/"
kskb_app_url: "https://kskb.dev/#item/papers-acdc-static-age-predicate-proof-smt"
kskb_record_url: "https://kskb.dev/data/kskb/resources/papers-acdc-static-age-predicate-proof-smt"
kskb_markdown_url: "https://kskb.dev/export/cards/papers-acdc-static-age-predicate-proof-smt.md"
---

# ACDC with Static Age Predicate Proof SMT

A design paper proposing a proof-of-age mechanism for Authentic Chained Data Containers (ACDCs) using a precomputed, static sparse Merkle tree (SMT) of age predicates held in the holder's wallet, as an alternative to blindable state registries or unlinkable zero-knowledge-proof (ZKP) predicate proofs, which it argues prevent detection of issuer key compromise. It covers SMT construction, the full suite of age predicates, usage and social engineering attacks.

Labels: reading level Implementer; evidence informative (an author's paper, deck, tutorial or post explaining the suite).
Source: https://github.com/SmithSamuelM/Papers/blob/master/whitepapers/ACDC_AgePredicate_SMT.md (license not recorded).
The abstract is KSKB's own text under Creative Commons Attribution 4.0 (CC BY 4.0), https://creativecommons.org/licenses/by/4.0/; credit KSKB, the KERISuite Knowledge Base (https://kskb.dev/).